Japan warned that it might pull funding for UNESCO to protest last week's decision to inscribe documents related to the Nanjing massacre in its Memory of the World register.
The UN's cultural body conferred world heritage status on a number of new sites including some seen as representative of Japan's industrial revolution.
UN culture chief Irina Bokova urged the Security Council to task peacekeepers with protecting cultural sites and to help prosecute those who destroy historical treasures.
One of China's renowned ancient towns was under water Wednesday as heavy rain hit the centre of the country, with tens of thousands of people evacuated from the area.
Kazakh representative to the UNESCO Executive Council Asel Utegenova said that Kazakhstan would ensure necessary protection of monuments included into the World Heritage.
Australia called a decision by UNESCO to defer listing the Great Barrier Reef as in danger "a win for logic", but environmentalists said it was a final warning.